Jacek Czerwonka

Hi! I’m Jacek, a software engineer at Microsoft working on engineering systems. Previously, I worked on Windows and spent time at Microsoft Research.

My interests center on the engineering process and tooling—particularly verification, including testing, code review, security, and compliance. I’m passionate about understanding engineering practices through data and identifying what makes engineers productive and fulfilled.

Beyond my day job, my team and I publish research papers. I’ve participated on program committees for several conferences, including ICSE SEIP, ISSRE, ICPC, IWCT, and SANER.

Notable Publications

Research on combinatorial testing — foundational work that remains highly relevant today.

PICT — a combinatorial test generation tool, available as open source on GitHub.

Exploring why code review is more complex than assumed, with deeper insights into large-scale projects.

How organizations collect engineering process data at scale and derive actionable insights from it.

Techniques for predicting code problem areas to improve development efficiency.

Early research on engineering productivity and team effectiveness.

More About Me

Combinatorial testing resource — a knowledge base I maintain.
GitHub — my code and open-source contributions.
Google Scholar — complete publication record.
LinkedIn — professional profile.

Get in Touch

I prefer email. Reach me at: jcz(at)ieee.com or jacekcz(at)microsoft.com.